Question 1
Argument: We should hire Maria as our lead developer because she has 10 years of experience in our industry.
Consider the assumption: 'No other candidate has more relevant experience'
If we negate this assumption (assume the opposite), does it break the argument?
Yes — If others have more experience, she may not be the best choice
Negation test: If 'Other candidates have more relevant experience' then the argument 'fails'.
Negation test: If 'Other candidates have more relevant experience' then the argument 'fails'.